. Journal. ce employed it Y Tantalum Mela P . joi Purifying . \V. V. Bolton. Asaignoi to Siemens und Halske Ak1Berlin. U S Pat. 799,441, Sepl 12, L905 Sue Eng. Pal 21,706of 1904 ; thi J , 1904, 1225 T K B Iron or Si:,/; Process of ( . C. C. Davis, Germantown, Pa. Pat. 799,542, Sepl 12, 1905The articles are maintained at sun to B50 us material between two metal plates, and a direel electr ti nl of suitable strength and character is paused il igh them, from a on ,re electrode placed between the plate- .1 If c French Patents. Furnace, Electro Metallurgical Soc DExploitation des Brevets Dolte

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. Journal. ce employed it Y Tantalum Mela P . joi Purifying . \V. V. Bolton. Asaignoi to Siemens und Halske Ak1Berlin. U S Pat. 799,441, Sepl 12, L905 Sue Eng. Pal 21,706of 1904 ; thi J , 1904, 1225 T K B Iron or Si:,/; Process of ( . C. C. Davis, Germantown, Pa. Pat. 799,542, Sepl 12, 1905The articles are maintained at sun to B50 us material between two metal plates, and a direel electr ti nl of suitable strength and character is paused il igh them, from a on ,re electrode placed between the plate- .1 If c French Patents. Furnace, Electro Metallurgical Soc DExploitation des Brevets Dolter. I-V. Pat. 353,391, Ipril 15,Tuts invention relates to an electro metallurgical fun, ishown in sectional elevation in Kg. I and in plan m fig. 2. The .metallic hath is composed of two elianm Is bl hetogether, the channels being con .one with, and at the .one height as the bobbins of the primary ,1 of a transformer, the bath of metal acting as the secondary. The Fic> Fig. 2. ?C-Xy

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882